An allergy occurs when your immune system reacts to something un-harmful that
does not usually affect other people. For example - one person could have an
allergic reaction to pet dander, while another person does not.

People can be allergic to a variety of substances. Some of these substances
include:

When a person has an allergic reaction to an otherwise safe substance, they
may develop a skin rash, hives, wheezing, trouble breathing, swollen lips,
tongue, or face, runny or stuffed nose, nausea, vomiting, and more.

Some people experience serious, life-threatening reactions to allergens, such
as the swelling of the throat or loss of consciousness. Allergies can require
treatment from experienced allergy doctors, which you can find here. Simply
browse our free searchable database of doctors and choose the one that best
fits your needs.

Our doctor lists are compiled solely from four main tactics: peer nomination,
research, review, and screening. By searching our database for the top allergy
doctors near you, you will be provided with information that includes the
doctor's education, training, and special expertise.